In which soil layer would you find loam that is rich in humus

1 answer:

7 0

The more humus found in topsoil, the more nutrient rich the topsoil and the better the conditions for growing plants. The middle layer is called subsoil. This contains more clay and less organic matter. Beneath this is a layer of rocks called bedrock.

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Help I should know it but I'm lazy

photoshop1234 [79]

Answer:

The first two answer choices

Explanation:

Hibernating and migrating both use energy, while drinking water and photosynthesizing to generate glucose for a plant is a way that an organism can obtain energy. Hope this helps!

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3 years ago

Read 2 more answers

Paired statements the can classify an organism

Irina18 [472]

I believe you are looking for the term, Dichotomous Keying.

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3 years ago

b. In 1979, the estimated elephant population was 1.3 million and in 2007 it was 640,000. By approximately what percentage did t

saveliy_v [14]

Answer:

The initial amount, 1.3 million = 1,300,000 is the 100%.

now, 640,000 is a given percentage (lower than 100%) of that.

How we can find it?

suppose that 640,000 represents an x%.

Then we have that the quotient between the actual quantities and the percentages must be the same

(640,000/1,300,000) = x%/100%

x% = (640,000/1,300,000)*100% = 49.23%

Then the percentage declined is:

100% - 49.23% = 50.77%

The other question can not be answered with the given information.

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3 years ago

Is a robot an open, closed, or isolated system? EXPLAIN WHY.

sdas [7]

Answer:

Closed system.

Explanation:

Robot is an closed system because there is no transfer of mass but transfer of energy occurs from robot to its surrounding. According to the definition of closed system, closed system is a type of system in which there is only transfer of energy occurs while in open system both mass and energy can be transferred from the system to their surrounding. So no mass transferred from the robot only energy in the form of mechanical energy is transferred.

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3 years ago

Rocks can best be identified by their hardness mineral content color grain

34kurt

Rocks can best be identified by their mineral content. This is because rocks are composed of one or multiple numbers of minerals. Quartz, calcite, feldspars, and micas are examples of minerals that make rock formations possible.

Rocks are the basic component of the Earth's crust. Mountains, hills, and volcanoes are examples of rock formations that occur through time on Earth. One can find rocks all over the Earth and most are usually under the soil. Rocks can be further classified as igneous, sedimentary, or metamorphic rocks.

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3 years ago